Display method, display apparatus and data write circuit utilized therefor

Abstract

A hold-type display apparatus is more likely to suffer the deterioration in the visibility of moving images due to the blur effect, compared to an impulse-type display apparatus. A single frame period is divided into a first period and a second period. Pixel data to be written to a pixel are written in a concentrated manner in the first period during a frame period. At this time, a write value for the pixel is set to twice a value of the image data in order not to lower the brightness of the images as a whole. However, only if the doubled value exceeds a range that can be displayed, the remaining pixel data are written in the second period. Thus, the change in display brightness approximates the impulse-type display apparatus, so that the visibility of moving images is improved.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to the display technologies, and it particularly relates to a method for displaying the moving pictures on a hold-type display apparatus, a display apparatus utilizing said method and a data write circuit usable for said display apparatus.[0003]2. Description of the Related Art[0004]Liquid crystal displays (hereinafter referred to as “LCDs”) and plasma displays (hereinafter referred to as “PDPs”) are increasingly becoming high-performance in recent years. These displays, helped by their intrinsically thin structure, are now about to wrest the leading role for TV receivers from cathode-ray tubes (hereinafter referred to as “CRTs”). This trend may keep accelerating in the years ahead.[0005]However, it is now known that LCDs and PDPs (hereinafter referred to as “LCDs and the like”) are subject to some degradation of moving picture quality due to a difference in display principle from CRTs. Tha...

AI Technical Summary

Benefits of technology

The present invention provides a display method and a data write circuit for a hold-type display apparatus that can improve the visibility of moving images. The method involves effective writing in a concentrated manner in a partial period during a frame period when a desired pixel value is written to a pixel. The write value in the partial period is set higher than the desired pixel value to realize the desired brightness. The data write circuit includes means for writing in an ith period n times the desired pixel value to be written to a pixel and writing 0 (zero) in periods other than the ith period. The method and circuit can be used in both impulse-type and hold-type display apparatuses.

Problems solved by technology

However, it is now known that LCDs and PDPs (hereinafter referred to as “LCDs and the like”) are subject to some degradation of moving picture quality due to a difference in display principle from CRTs.

As a result, for the eyes that follow the moving object in a smooth motion, there results a disparity between the position of the displayed moving object and the position sensed by the eyes as the center of the moving object, so that the moving object is recognized as a blurred image.

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